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5. Investments (Details Narrative) - Veritone [Member] - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Investment shares sold 298,450 1,121,071 2,700,000
Gain (Loss) from sale of investment $ (3,300) $ (9,200) $ (19,100)
Investments - Common Stock [Member]      
Investment owned, shares 0    
Investments - Warrants [Member]      
Investment warrants 1,120,432    
Fair value of investment $ 1,387